Dr. Ngoc Thianh Nguyen, MD
- Medicare services, 2024
- 7,619
- Medicare patients, 2024
- 1,502
- Part D claims, 2024
- 24,646
- Publications
- 6
- MIPS score, 2024
- 75
- Practice address
- 2380 Montpelier Dr, San Jose, CA 95116
- Practice phone
- Call (408) 272-3706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ngoc Nguyen MD Inc
San Jose, California
Find Dr. Nguyen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ngoc Thianh Nguyen is an ophthalmologist in San Jose, California
Dr. Nguyen practices at Ngoc Nguyen MD Inc in San Jose, California.
Dr. Nguyen's NPI, 1609935113, was assigned on December 8, 2006. Dr. Nguyen graduated from UC San Diego School of Medicine in 1989. Dr. Nguyen holds California license G070053.
- NPI
- 1609935113NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032184742
- NPI enumeration date
- December 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 272-3706
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ngoc Thianh Nguyen practices at Ngoc Nguyen MD Inc in San Jose, California
Dr. Nguyen's primary practice is Ngoc Nguyen MD Inc, at 2380 Montpelier Dr, San Jose, CA 95116 in Santa Clara County. The practice phone is (408) 272-3706.
- Ngoc Nguyen MD Inc2380 Montpelier Dr, San Jose, CA 95116 · Santa Clara CountyPhone(408) 272-3706
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ngoc Thianh Nguyen is affiliated with 2 sites of care and 1 medical group
Dr. Nguyen's primary practice is Ngoc Nguyen MD Inc in San Jose, California. Dmand AI also links Dr. Nguyen to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ngoc Thianh Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ngoc Nguyen MD Inc | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ngoc Thianh Nguyen is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Nguyen is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Nguyen treats.
Ophthalmologists near Dr. Nguyen
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ngoc Thianh Nguyen billed Medicare for 7,619 services in 2024
CMS data shows 7,619 Medicare services from Dr. Nguyen across 20 procedure codes in 2024, for 1,502 Medicare patients. Medicare paid $583,326 for them.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 7,0132024: 7,000No change
- Surgery
- 2023: 3932024: 29824%
- Office and hospital visits
- 2023: 1462024: 19131%
- Imaging
- 2023: 1002024: 13030%
Where Dr. Nguyen's Medicare services took place, 2024
- In an office7,47498%
- In a facility1452%
Dr. Nguyen compared with the California median for ophthalmologists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 7,619vs 1,0797.1 times
- Medicare patients
- 1,502vs 4213.6 times
- Part D claims
- 24,537vs 61839.7 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ngoc Thianh Nguyen treated 1,502 Medicare patients in 2024, average age 78
CMS counts 1,502 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 75 to 84, with 693 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 90% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 72, with 61% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women95163%
- Men55137%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Osteoporosis32%
- Chronic kidney disease30%
- Arthritis29%
- Ischemic heart disease19%
- Heart failure12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nguyen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ngoc Thianh Nguyen wrote 24,646 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 24,646 Medicare Part D claims for 2,634 patients. 50% of them were for generic drugs. CMS names the drug for 24,537 of them, across 47 drugs with 11 or more claims each, at $5,757,793 in total drug cost. In 2023, CMS named 23,816 claims across 47 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic12,404 claims50%
- Brand-name12,242 claims50%
Dr. Nguyen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nguyen's Part D claims, 2024
- Antibiotics0%11 of 24,646 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 23,8162024: 24,5373%
Drugs named by CMS: 47 in 2024, 47 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ngoc Thianh Nguyen scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Nguyen for performance year 2024, reported individually. Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 194 procedures of cataract surgery by Dr. Nguyen, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Nguyen ranks in Medicare procedure volume
- Cataract surgery
- 83rd percentile194 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ngoc Thianh Nguyen has 6 publications on record
Dmand AI links 6 papers to Dr. Nguyen in 2018. 2018 was the busiest year, with 4. The most frequent topics are Intraocular Pressure, Tonometry, Ocular and Glaucoma, Angle-Closure. Dr. Nguyen has published most often in Am J Ophthalmol. Dr. Nguyen's most frequent co-authors are Shan C. Lin, MD, Andrew George Iwach, MD and Marc Lieberman, MD.
Topics Dr. Nguyen writes about most
- Intraocular Pressure
- Tonometry, Ocular
- Glaucoma, Angle-Closure
- Nerve Fibers
- Retinal Ganglion Cells
- Tomography, Optical Coherence
- Vietnam
- Visual Acuity
Dr. Nguyen's most frequent co-authors
Recent publications by Dr. Nguyen
Am J Ophthalmol
See who Dr. Nguyen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nguyen works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ngoc Thianh Nguyen received $16,710 in industry payments from 2016 to 2025
CMS Open Payments shows 341 general payments to Dr. Nguyen from 28 drug and device companies from 2016 to 2025. Charitable contributions make up the largest share, 55% of the total. Valeant Pharmaceuticals International paid the most, $9,354.
General payments to Dr. Nguyen by program year, 2016 to 2025
General payments to Dr. Nguyen by kind, 2016 to 2025
- Charitable contributions$9,26255%
- Food and beverage$6,57039%
- Honoraria$4002%
- Device or supply loans$3602%
- Other$1181%
Companies that paid Dr. Nguyen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ngoc Thianh Nguyen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nguyen.
Awards and honors for Dr. Nguyen
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Ngoc Thianh Nguyen graduated from UC San Diego School of Medicine
Dr. Nguyen graduated from UC San Diego School of Medicine in 1989. Dr. Nguyen is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Ngoc Thianh Nguyen accepts plans from 14 insurance carriers
Dr. Nguyen is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Alliant Health Plans
- Aspirus Health Plan
- +6 more carriersWith a free account
Plan types Dr. Nguyen accepts, by number of carriers
- PPO8
- Medicare7
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Ngoc Thianh Nguyen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ngoc Thianh Nguyen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ngoc Thianh Nguyen's NPI number?
Dr. Ngoc Thianh Nguyen's NPI number is 1609935113. It was assigned on December 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ngoc Thianh Nguyen?
Dr. Ngoc Thianh Nguyen is an ophthalmologist in San Jose, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ngoc Thianh Nguyen practice?
Dr. Nguyen practices at 2380 Montpelier Dr, San Jose, CA 95116. Dr. Nguyen's primary practice is Ngoc Nguyen MD Inc in San Jose, California. Dmand AI also links Dr. Nguyen to 1 group practice or clinic and 1 medical group.
What is Dr. Ngoc Thianh Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (408) 272-3706.
What is Dr. Ngoc Thianh Nguyen's medical license number?
Dr. Nguyen holds California license G070053, one of the licenses on file in 2 states.
Which states has Dr. Ngoc Thianh Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in California (1990 to 2026) and Florida (1995 to 2018).
Does Dr. Ngoc Thianh Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 7,619 services in 2024, and Dr. Nguyen accepts Medicare assignment.
What is Dr. Ngoc Thianh Nguyen's MIPS score?
Dr. Nguyen's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Ngoc Thianh Nguyen see?
CMS counts 1,502 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 78.
Is Dr. Ngoc Thianh Nguyen board certified?
Yes. Dr. Nguyen is board certified in ophthalmology by the American Board of Ophthalmology.
Show 8 more questionsShow fewer questions
What services does Dr. Ngoc Thianh Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were eye exam or test (92012), eye exam or test (92020) and eye exam or test (92014).
Where did Dr. Ngoc Thianh Nguyen go to medical school?
Dr. Nguyen graduated from UC San Diego School of Medicine in 1989.
What drugs does Dr. Ngoc Thianh Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Erythromycin.
Has Dr. Ngoc Thianh Nguyen received payments from drug or device companies?
CMS Open Payments shows $16,710 in general payments to Dr. Nguyen from 28 companies from 2016 to 2025. The largest total came from Valeant Pharmaceuticals International.
How long has Dr. Ngoc Thianh Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1989, 37 years ago.
Does Dr. Ngoc Thianh Nguyen do research?
Dmand AI links 6 publications to Dr. Nguyen.
Who does Dr. Ngoc Thianh Nguyen publish with?
Dr. Nguyen's most frequent co-authors are Shan C. Lin, MD (3 shared papers), Andrew George Iwach, MD (1 shared paper) and Marc Lieberman, MD (1 shared paper).
What insurance does Dr. Ngoc Thianh Nguyen accept?
Dr. Nguyen is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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